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<FONT color="green">001</FONT>    package org.hackystat.ambientdevice.trigger;<a name="line.1"></a>
<FONT color="green">002</FONT>    <a name="line.2"></a>
<FONT color="green">003</FONT>    import java.io.Serializable;<a name="line.3"></a>
<FONT color="green">004</FONT>    import java.util.Comparator;<a name="line.4"></a>
<FONT color="green">005</FONT>    import org.hackystat.sensorbase.resource.sensordata.jaxb.SensorDataRef;<a name="line.5"></a>
<FONT color="green">006</FONT>    <a name="line.6"></a>
<FONT color="green">007</FONT>    /**<a name="line.7"></a>
<FONT color="green">008</FONT>     * Comparator that compare SensorData by its date.<a name="line.8"></a>
<FONT color="green">009</FONT>     * <a name="line.9"></a>
<FONT color="green">010</FONT>     * @author Shaoxuan Zhang<a name="line.10"></a>
<FONT color="green">011</FONT>     */<a name="line.11"></a>
<FONT color="green">012</FONT>    public class CompareSensorDataRefByDate implements Comparator&lt;SensorDataRef&gt;, Serializable {<a name="line.12"></a>
<FONT color="green">013</FONT>    <a name="line.13"></a>
<FONT color="green">014</FONT>      /**<a name="line.14"></a>
<FONT color="green">015</FONT>       * serialVersionUID.<a name="line.15"></a>
<FONT color="green">016</FONT>       */<a name="line.16"></a>
<FONT color="green">017</FONT>      private static final long serialVersionUID = 3763521540646279352L;<a name="line.17"></a>
<FONT color="green">018</FONT>    <a name="line.18"></a>
<FONT color="green">019</FONT>      /**<a name="line.19"></a>
<FONT color="green">020</FONT>       * method that implement the comparation.<a name="line.20"></a>
<FONT color="green">021</FONT>       * <a name="line.21"></a>
<FONT color="green">022</FONT>       * @param data1 the first SensorData<a name="line.22"></a>
<FONT color="green">023</FONT>       * @param data2 the second SensorData<a name="line.23"></a>
<FONT color="green">024</FONT>       * @return The relationship between these two SensorData. -1 if LESSER, 0 if EQUAL, 1 if GREATER<a name="line.24"></a>
<FONT color="green">025</FONT>       */<a name="line.25"></a>
<FONT color="green">026</FONT>      public int compare(SensorDataRef data1, SensorDataRef data2) {<a name="line.26"></a>
<FONT color="green">027</FONT>        int result = data1.getTimestamp().compare(data2.getTimestamp());<a name="line.27"></a>
<FONT color="green">028</FONT>        if (result == 2) {<a name="line.28"></a>
<FONT color="green">029</FONT>          result = 0;<a name="line.29"></a>
<FONT color="green">030</FONT>        }<a name="line.30"></a>
<FONT color="green">031</FONT>        return result;<a name="line.31"></a>
<FONT color="green">032</FONT>      }<a name="line.32"></a>
<FONT color="green">033</FONT>    <a name="line.33"></a>
<FONT color="green">034</FONT>    }<a name="line.34"></a>




























































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